Kaczanowski T. - Practical Unit Testing with JUnit and Mockito

Copyright @ 2013 kaczanowscy.pl Tomasz Kaczanowski

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor the publisher, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

The author has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, the author cannot guarantee the accuracy of this information.

Visit us on the web: http://practicalunittesting.com

Published by kaczanowscy.pl Tomasz Kaczanowski

Cover design by Agata Wajer-Gadecka, http://poleznaku.pl

ISBN: 978-83-934893-8-1

First printing, April 2013

Version epub_20130510_2210

In various different ways a number of people have helped me with writing this book some by giving feedback, others by comforting me in times of doubt.

Marcin Stachniuk was the first person to offer to review the book in the early stages of its being written, and at the same time the most persistent of my reviewers. He read every part of the book and gallantly overcame the obstacles I frequently put in his way: frequent releases, constant juggling of the contents, minor piecemeal adjustments, etc.Piotr Przybylak helped a lot by introducing me to the concept of "personas".Michal Margiel read the whole book and sent me a long list of defects he had identified. Some of his remarks regarding code style were very pertinent, and after I had introduced them the book seemed far better than before!Pawel Lipinski, Marcin Zajaczkowski, Pawel Wesolowski, Rafal Janik, Daniel Longosz and Krzysztof Jelski also contributed by verifying several sections of the book.Szczepan Faber, Mockitos author, has given me a good bashing, unearthing several weaknesses in the book as it went along, but at the same time has appreciated my work and encouraged me to go on with it.Jakub Naruszewicz and Shamil Daghestani helped preparing Kindle version of the book.I have also received a great deal of encouragement from Java community members on social networks. Thanks to all of you!

This book would never have happened if it had not been for the (unwitting) help of thousands of bloggers and mailing group debaters. I have learned a lot from, and have been inspired by, numerous Java, PHP, Ruby and .Net articles, blog posts and discussions. It is amazing to find out that despite the differences in tools and approaches, so many of us share the same ideals of clean, perfect code, and that we also rack our brains about similar issues.

I have also learned a considerable amount from the participants in training sessions that I myself have conducted. By sharing their doubts and comments with me, they have helped me to rethink my stances and look for even better solutions, approaches or tools.My colleagues at work have given me much food for thought, just by doing things differently from how I would, while insisting that their way is better! :) This has also helped me go forwards, even if Ive sometimes had to take a few steps backwards first!

Carl Humphries has done a splendid job by translating this book from my version of English into a standard one. You would not enjoy reading this book at all, were it not for his hard work!

My gratitude also goes out to the authors, contributors and community members of all of the numerous fantastic free tools, libraries and applications I have made use of while writing it. My deepest respect goes to everyone who contributed even a single line of code to the following projects: AsciiDoc, Docbook, vim, Apache FOP, xlstproc, Subversion, IntelliJ IDEA, FoxitReader, Calibre, EPUB Reader, Inkscape, Gimp, ImageMagick, LibreOffice, PCLinux OS, various bash tools (grep, diff, tree, etc.), xmind.net, toodledo.com, clker.com, wikipedia.org, stackoverflow.com, xp-dev.com and github.com. I would also like to thank all the people on the AsciiDoc and Docbook mailing lists for bearing with me, even when my questions seemed foolish.

Even though many people have contributed to this book and have carried out reviews, all bugs still belong to me!

My family has also made an immense contribution. Agnieszka, my wife, has supported my work from the very beginning, repeatedly reminding me about the need to focus on getting things finished, and giving up some of her so-called "free-time" so that I could have more time to spend on it. Without her help, I would simply have never finished the book!My daughters - Zosia and Helenka - gave me reasons to smile every day; something I needed very much, being tired and depressed with the amount of work still lying before me.Our cat - Boni - has played a double game. Some evenings she helped me to calm down by sitting on my lap, purring softly, while sometimes she deprived me of sleep by making an awful racket at night! :)